Question

WX
is dilated by a scale factor of one third
3
1
​
to form start overline, W, prime, X, prime, end overline
W
′
X
′

. start overline, W, X, end overline
WX
measures 3636. What is the measure of start overline, W, prime, X, prime, end overline
W
′
X
′

?

Answer 1

A dilation by scale factor 1/3 multiplies lengths by 1/3. So W'X' = (1/3)·WX = (1/3)·36 = 12.